RetroArch/tasks/task_netplay_lan_scan.c
2022-06-19 03:41:04 +02:00

121 lines
3.0 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2016-2017 - Jean-André Santoni
* Copyright (C) 2016-2019 - Andrés Suárez
* Copyright (C) 2021-2022 - Roberto V. Rampim
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <features/features_cpu.h>
#include "tasks_internal.h"
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#ifdef HAVE_NETPLAYDISCOVERY
#include "../network/netplay/netplay.h"
struct netplay_lan_scan_data
{
retro_time_t timeout;
void (*cb)(const void*);
bool query;
bool busy;
};
static void task_netplay_lan_scan_handler(retro_task_t *task)
{
struct netplay_lan_scan_data *data =
(struct netplay_lan_scan_data*)task->task_data;
if (data->query)
{
netplay_discovery_driver_ctl(
RARCH_NETPLAY_DISCOVERY_CTL_LAN_CLEAR_RESPONSES, NULL);
if (!init_netplay_discovery())
goto finished;
if (!netplay_discovery_driver_ctl(
RARCH_NETPLAY_DISCOVERY_CTL_LAN_SEND_QUERY, NULL))
goto finished;
data->timeout += cpu_features_get_time_usec();
data->query = false;
}
else
{
if (!netplay_discovery_driver_ctl(
RARCH_NETPLAY_DISCOVERY_CTL_LAN_GET_RESPONSES, NULL))
{
if (cpu_features_get_time_usec() >= data->timeout)
goto finished;
}
}
return;
finished:
deinit_netplay_discovery();
task_set_progress(task, 100);
task_set_finished(task, true);
}
static void task_netplay_lan_scan_callback(retro_task_t *task,
void *task_data, void *user_data, const char *error)
{
struct netplay_lan_scan_data *data =
(struct netplay_lan_scan_data*)task_data;
net_driver_state_t *net_st = networking_state_get_ptr();
data->cb(&net_st->discovered_hosts);
data->busy = false;
}
bool task_push_netplay_lan_scan(void (*cb)(const void*), unsigned timeout)
{
static struct netplay_lan_scan_data data = {0};
retro_task_t *task;
/* Do not run more than one LAN scan task at a time. */
if (data.busy)
return false;
task = task_init();
if (!task)
return false;
data.busy = true;
data.query = true;
data.timeout = (retro_time_t)timeout * 1000;
data.cb = cb;
task->handler = task_netplay_lan_scan_handler;
task->callback = task_netplay_lan_scan_callback;
task->task_data = &data;
task_queue_push(task);
return true;
}
#else
bool task_push_netplay_lan_scan(void (*cb)(const void*), unsigned timeout)
{
return false;
}
#endif